下面说法不正确的是[ ] A．三角形的面积一定，底和高成反比_爱下问搜题

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问题选择题

下面说法不正确的是[ ]

A．三角形的面积一定，底和高成反比例

B．长方形的周长一定，长和宽不成比例

C．订阅《少年报》的份数和总钱数成正比例

D．因为圆周长C= πd，所以π与d成反比例

答案

答案：D

解：A、三角形的底×高=面积（一定），是乘积一定，成反比例，此句正确；

B、长方形的长+宽=

周长（一定），是和一定，不是乘积或比值一定，不成比例，此句正确；C、订《少年报》的总价÷份数=单价（一定），是比值一定，成正比例，此句正确；D、圆周长C=πd，但π是定量，不随着d的变化而变化，所有π与d不成比例，原句错误；故选：D．

完形填空

Eighty-year-old retired tailor, James McKay, spent Saturday night in jail after      thirty-year-old Keith Smith over the head      his walking stick. McKay's wife, Laurence told us that while McKay is usually a        person, he had been        to this act of violence by getting wet just once too often.
Smith lives above the McKays and it appears that not only is he a keen gardener, he is also a        collector. Unfortunately for him, the water he sent over his balcony every day ended up on the McKay's, or too often, on the McKays       .
“For the last fortnight, since Smith moved into the flat above us, we have hardly dared to go to our       ,” said Laurence. She added that it wasn't so much the water falling onto their balcony from Smith watering his plant        bothered them, it was more the way he cleaned his fish tanks. “We'd be        there happily reading our newspapers, when        so much water would come from above that we'd be as wet as if we'd        with our clothes on! Neither could we get rid of the        of fish!”
And on Saturday evening it was just too       . “It was James's birthday,” explained Laurence, “and I'd made him a birthday cake. The candles were a great sight as you can imagine, but James didn't get to blow them out.”       , Smith emptied one of his larger tanks over his balcony and both the McKays and the cake were wet       . Rarely had Laurence seen McKay move so fast. “I couldn't        him. He was up there in a flash. It was the fastest I'd seen him move since 1964.”
Smith is not going to take things further with the police. He has also promised to change his        from now on. And what of James McKay?        he left the police station, a large crowd of supporters sang him, “Happy Birthday”. “      the most exciting birthday       !” said the cheerful old man. “The best since my adolescence I'd say!”

B．unconsciously

D．Consequently

填空题

秦汉时期的（）开创了园林史中人工造山的先例。